When you load the operating system into the RPi, wait a few seconds. Do not click on the sbitx icon right away, because then malfunctions occur more often.
So the system is built, then you count to 10 and then start sbitx. This structure can be compared to a slow vehicle, you have to wait until it builds the necessary files. Switching off is similar to other computers, you have to exit the system and not switch off the main switch first. Turn off the main switch only after the saves. All this is clearly visible if you use an external hdmi monitor. There you can see where you are in the build or save.
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Gyula HA3HZ